12 CATALOGUE OF AUTHORS. 
Say, Thomas. Description of seven species of American Fresh- 
Watt r and Land Shells not noticed in the Systems. Journal 
of the Academy of Natural Sciences of Philadelphia, Vol. i. 
pp. 13 — 18. May, 1817. 
Descriptions of new species of Land and Fresh-Water Shells. 
Same Journal. Vol. i. pp. 123 — 125. October, 1817. 
Account of two new Genera, and several new species of Frcsh- 
Walcr and Land Shells. Same Journal. Vol. i. pp. 276 — 
284. May, 1818. 
Descriptions of Univalve Shells of the United States. Same 
Journal. Vol. ii. pp. 149 — 179. January, 1821. 
Descriptions of Univalve terrestrial and fluviatile Shells of the 
United Slates. Same Journal. Vol. ii. pp. 370 — 381. De- 
cember, 1822. 
Descriptions of some neio species of Fresh-Water arid Land 
Shells. Same Journal. Vol. v. pp. 119 — 131. August, 
1825. 
Expedition to the Source of St. Peter's River, Lake Winnrpcck, 
<Src, performed in the year 1823, by order of John C. Cal- 
houn, Secretary of War, under the command of Stephen H. 
Long, Major U. S. T. E. Appendix. Zoology. Vol. ii. pp. 
253 — 378. With figures. 8vo. Philadelphia, 1824. 
American Conchology, or Descriptions of the Shells of North 
America, illustrated by colored figures. Six numbers. 8vo. 
New Harmony, Indiana. 1830 — 1834. A posthumous num- 
ber has been published in Philadelphia, by Mrs. Say. 
Descriptions of some new terrestrial and fluviatile Shells of North 
America. Disseminator of Useful Knowledge. New Har- 
mony, Ind. 1829 — 1831. And Transylvania Journal of 
Medicine, vol. ii. 1832. Collected and published in pam- 
phlet foTm, under the same title, pp. 26. Svo. New Har- 
mony, 1840. 
Sager, Abm., M. D. Detroit, Michigan. Catalogue of Animals 
observed in the State of Michigan. Contained in the Second 
Annual Report of the State Geologist ; Document of the Sen- 
ate of Michigan. No. 13. Detroit, Mich., Feb. 1839. 
Transactions of Societies devoted wholly or in part to Natural 
History, viz. : 
Annals of the Lyccuinof Natural History of New York. 1 vols. 
Svo. 1823 to 1826. 
